Scraper-sifter device

ABSTRACT

The present disclosure is directed to a scraper-sifter device having a concavo-convex backing trowel member having a front scraper and an intermediate sifter section between the scraper and backing member. Flexible connections are provided on the device to permit attachment to a front end loader bucket or attachment to the implement draft device of a conventional tractor.

United States Patent 49,370 8/1865 Buckland WedadJ. Smith El Paso, Tex.

May 5, 1969 Aug. 3, 1971 Wrex-Al1 Implements, lnc. Thibodaux, La.

Inventor Appl. No. Filed Patented Assignee SCRAPER-SH-I'ER DEVICE 1Chim,6Dnwing Figs.

US. Cl 209/421, 171/6, 209/393 Int. CL B07b 1/28 Field of Search209/420, 421,418,419; 37/1175, 118, 135, 124, 129, 130,

References Cited UNITED STATES PATENTS 637,342 11/1899 K3116! 209/419643,740 2/1900 Cecil 171/135 798,596 9/1905 Ca1lahan.. 37/141 976,81111/1910 KIOSS 171/136X 1,316,058 9/1919 Pugh..... 37/141x 3,458,9818/1969 Banner 177/136X FOREIGN PATENTS 16,944 6/1891 England 171/136Primary Examiner- Frank W. Lutter Assistant ExaminerWilliam C.Cuchlinski, Jr. Attorney-Wilkinson, Mawhinney & Theibault ABSTRACT: Thepresent disclosure is directed to a scrapersifter device having aconcavo-convex backing trowel member having a front scraper and anintermediate sifter section between the scraper and backing member.Flexible connections are provided on the device to permit attachment toa front end loader bucket or attachment to the implement draft device ofa conventional tractor.

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'Inmwgmg iimmm SCRAPER-SIFIER DEVICE An object of the present inventionis to providea scrapersifter device for quick attachment to the bucketof a front end loader which device may be moved through a mixture ofdirt and rubble so that the dirt may be sifted out from the rubble andtroweled to a level smooth even condition and the rubble dumped into atruck with the necessity of removing the front end loader bucket.

Another object of the present invention is the provision of a scrapersifter as described above which may also be employed with a conventionaltractor for smoothing and leveling a site where-demolition of a buildingor the like has taken place leaving a comixture of dirt and rubble toleave the dirt and facilitate removal of the rubble from localizedareas.

FIG. 1 is a perspective view of a front end loader bucket having thedevice of the present invention installed thereon.

FIG. 2 is a view similar to FIG. 1 taken at an enlarged scale.

FIG. 3 is a perspective view of the front end loader bucket containingthe device of the present invention being discharged into a truck.

FIG. 4 is a perspective view similar to H6. 3 upon completion ofdischarge of rubble into a truck.

FIG. 5 is a perspective view of the scraper-Sifter device of the presentinvention being drafted by a tractor.

FIG. 6 is a perspective view of the scraper-sifter drafted by tractorwith the device in the conventional or dumped position.

Referring now to FIG. 1, l0 designates a front end loader having abucket 11 connected in the conventional manner to a dipstick or the like12. The scraper-Sifter device has a concavo-convex backing trowel member13. Extending forwardly of the member 1315 a front scraper blade 14spaced from member 13 by a screen section 15 formed by spaced bars 15Adefining slottedlike openings 15B therebetween. Support braces 14A arewelded to'the blade and trowel member to make a rigid integral unit.

The sidewalls 11A are provided with key hole slots 118 at their frontlower positions to receive therethrough links of attaching chains 16 atone end thereof while the other ends of chains 16 are attached by bolts17 to eyes 18 which are secured to blade 14. :The bottom rearwall 11C ofbucket 11 has welded thereon attaching eye plates MD, to which areconnected rear chains 19 at one end thereof while the other ends ofchains 19 are secured to the device by a clevis 20 and bolt 21.

The device is installed-onthe bucket as'shown in FIGS. 1 and 2. Thefront end loader is driven forwardly so that the leading edge of'thescraper blade 14 is wedged beneath a mixture of rubble 'and'dirt, therubble being either broken bricks and chunks of concrete. As the dirtand rubble build up the dirt sifts through the slots 15B falling backupon the ground where it is troweled or leveled by the trowel member 13to leave a smoothed surface. When a sufiicient amount of rubble hasaccumulated on the blade 14 and screen section 15 the bucket 11 with thedevice thereon is elevated'to the sequented discharge positions of FIGS.3 and 4 where the rubble is dumped into the truck body 22 and hauledaway.

Referring to FIGS. 5 and 6 the scraper-sifter device is shown attachedfor draft by a tractor 22 having the usual implement draft device 23 atthe rear thereof. The device is connected to the draft unit 23 by chains24 by clevises 25. After the device has been drawn by the tractor 22, asshown in FIG. 5, when sufficient rubble has been collected the device isdumped as shown in FIG. 6, the earth or dirt having passed throughopenings 15A and the. rubble having been retained as shown. The rubbleis then scooped up by the bucket 11 of a front end loader and carriedaway by the track or the like.

Iclaim:

1. For use with a front end loader having a loading bucket with key slotopenings at the base of the front end of its sidewalls, aground-leveling and separating device comprising,

a substantially flat main blade having a slotted rear portion aconcave-convex blade backing trowel member secured to the rear of theslotted portion of the main blade with the concavity thereof directedrearwardly of the main blade, attaching means one end of which isadapted to be connected to the rear of the front end loader bucket andthe other end connected to the rear of said device, and attaching meansconnected proximate the forward end of the device at one of its ends andadapted to be connected at its other end through the keyhole slot in thefront end loader bucket.

1. For use with a front end loader having a loading bucket with key slotopenings at the base of the front end of its sidewalls, aground-leveling and separating device comprising, a substantially flatmain blade having a slotted rear portion, a concavo-convex blade backingtrowel member secured to the rear of the slotted portion of the mainblade with the concavity thereof directed rearwardly of the main blade,attaching means one end of which is adapted to be connected to the rearof the front end loader bucket and the other end connected to the rearof said device, and attaching means connected proximate the forward endof the device at one of its ends and adapted to be connected at itsother end through the keyhole slot in the front end loader bucket.